<?php

/**
 * @package php-font-lib
 * @link    http://php-font-lib.googlecode.com/
 * @author  Fabien M�nager <fabien.menager@gmail.com>
 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
 * @version $Id: font_table_hhea.cls.php 37 2011-11-07 07:38:44Z fabien.menager $
 */

/**
 * `hhea` font table.
 * 
 * @package php-font-lib
 */
class Font_Table_hhea extends Font_Table {

    protected $def = array(
        "version" => self::Fixed,
        "ascent" => self::FWord,
        "descent" => self::FWord,
        "lineGap" => self::FWord,
        "advanceWidthMax" => self::uFWord,
        "minLeftSideBearing" => self::FWord,
        "minRightSideBearing" => self::FWord,
        "xMaxExtent" => self::FWord,
        "caretSlopeRise" => self::int16,
        "caretSlopeRun" => self::int16,
        "caretOffset" => self::FWord,
        self::int16,
        self::int16,
        self::int16,
        self::int16,
        "metricDataFormat" => self::int16,
        "numOfLongHorMetrics" => self::uint16,
    );

    function _encode() {
        $font = $this->getFont();
        $this->data["numOfLongHorMetrics"] = count($font->getSubset());

        return parent::_encode();
    }

}